Note to moderator: Please read the answerline carefully.The dynamics of this process requires spherical symmetry breaking instabilities like the lepton-number emission self-sustained asymmetry and the SASI. The asymmetry of this process imparts a natal kick velocity. The chief physical mechanism for this process requires neutrino heating in the turbulent gain region. This process begins with a shock wave that eventually stalls due to the ram pressure of accreting material. Towards the end of this process, the rate of the decline from the “plateau” phase to the “radioactive tail” phase on (*) light curves is governed by nickel-56 abundance. When temperatures reach 10 billion Kelvin during this process, photodisintegration occurs. Supernovae that occur via this process can form neutron stars and black holes, unlike those that occur when a white dwarf exceeds the Chandrasekhar mass. For 10 points, what process is the implosion of the center of a massive star? ■END■
ANSWER: core collapse [or core-collapse supernovae; prompt on collapse; prompt on CCSNe; prompt on stellar explosions or supernovae or SNe or Type Ib (“one-B”) supernovae or Type Ic (“one-C”) supernovae or Type II (“two”) supernovae or Type II-P supernovae or Type II-L supernovae or Type IIb supernovae by asking “what physical process is the mechanism for the supernova?” until “supernova” is read; reject “Type Ia (“one-A”) supernovae” or “thermonuclear explosions” or “thermal runaway”] (SASI stands for standing accretion shock instability.)
<Jonathen Settle, Astronomy>
= Average correct buzz position